Traditional gasoline car fault
Search fault code and browse forum case posts.
This page is designed for quick diagnosis on gasoline vehicles by combining code lookup with real discussion cases. Enter a fault code to filter related topics, then compare symptom context such as cold start behavior, acceleration load, fuel-trim deviation, ignition misfire pattern, and recent maintenance history. Many codes can be triggered by shared root causes, so use cross-checks from multiple posts before replacing sensors, coils, injectors, or catalytic components.
P1572 Brake Circuit Fault - 2001 Lincoln LS Check Engine Light Issue
My 2001 Lincoln LS has triggered a P1572 diagnostic code, which indicates a brake pedal switch circuit fault. The check engine light came on, and upon inspection, both the drive...
2001 Lincoln LS | P15722001 Ford Taurus P0133 Code After Rust Proofing - Could Rust Treatment Have Caused It?
I recently had my 2001 Ford Taurus undergo a rustproofing treatment, and the very next day I noticed the check engine light was illuminated. I took the car to Auto Zone for a di...
2001 Ford Taurus | P0133Nissan Almera P0420 Fault Code: Diagnosis and Solution Guide
Hi, I'm new to this forum and seeking help with my 2005 Nissan Almera that's showing fault code P0420. I've performed an OBD2 test and received the following results: Component...
nissan almera | P04201999 GMC Sonoma P0300 Code: How to Fix Sputtering in Moisture Conditions
I own a 1999 GMC Sonoma with a 4.3L Vortec engine (VIN X). The vehicle runs smoothly under clear weather conditions, but when moisture is present—such as heavy dew, fog, or afte...
99 GMC Sonoma | P03002001 Honda Civic accord p0700 and p0740
Hi I went to get my Honda civic check and p0700 and p0740 codes came up the car has a lil leak But however the car is not slipping or anything. it's not showing no Transmission...
2001 Honda Civic Accord | P0700P0446 Diagnostic & Fix for 1997 Chevrolet Blazer 4.3L 4WD - EVAP System Issues
I own a 1997 Chevrolet Blazer with 109,000 miles, equipped with a 4.3L V6 engine and 4WD. The vehicle consistently triggers the 'Service Engine Soon' light, which I've been able...
1997 chevrolet blazer | P04462006 Cadillac CTS DTC P2187 and P2189 with P0300, P0301, P0303 Codes: Lean Mixtures and Misfire Diagnosis
Hello everyone! This is my first post on the forum, so I hope I'm in the right place. I recently purchased a 2006 Cadillac CTS with the following diagnostic trouble codes: P2187...
06 Cad CTS | P21872004 Cadillac CTS P0446 Fault Code: Bosch Spark Plug FGR8KQE0 Replacement Solution
I'm experiencing a P0446 diagnostic trouble code on my 2004 Cadillac CTS, which indicates a malfunction in the evaporative emission control system. I have currently installed th...
2004 Cadillac CTS | P0446How to Fix P2422 Fault Code in 2008 Kia Sedona - EVAP System Diagnosis
I'm looking for help diagnosing and fixing the P2422 fault code on my 2008 Kia Sedona. The check engine light has come on, and the OBD2 scanner shows a P2422 code related to the...
Kia Sedona | P24222009 Ford F150 4.6L Engine Fault Codes C1282 and C2770: Causes and Fixes
I own a 2009 Ford F150 XL with a 4.6L engine, and I'm currently experiencing two diagnostic trouble codes: C1282 and C2770. Code C1282 indicates a lateral accelerometer signal f...
2009 F150 | C1282P3449 Error Code on 2008 Chevrolet Silverado 5.3L Flex-Fuel 4x4: Troubleshooting Guide with Cylinder Deactivation Solenoid Location
I'm experiencing a P3449 error code on my 2008 Chevrolet Silverado 5.3L flex-fuel, 4x4 model (VIN O), which is triggering the MIL (Malfunction Indicator Lamp). The engine runs r...
2008 Silverado 5.3 Flex Fuel 4x4 | P34492007 Yukon XL Denali P0420 P0430 B0081 C0710 U0073 Fault Codes Explained
Hi everyone, I own a 2007 Yukon XL Denali with VIN: 1GKFK66837J257439. I'm currently dealing with several diagnostic trouble codes and would like to understand what they mean: ...
Yukon XL Denali | B00812005 Mercury Mariner 3.0L Engine Misfiring: P0351, P0353, P0354 Codes After Coil Replacement
I replaced three ignition coils on my 2005 Mercury Mariner 3.0L engine, and after the replacement, the OBD2 diagnostic codes disappeared temporarily. However, the engine continu...
2005 Mercury Mariner | P0351Chevy Captiva 2007 LS 2.4L Engine P0606 Diagnostic and Fix
I'm experiencing a P0606 fault code on my 2007 Chevrolet Captiva LS with a 2.4L engine. The check engine light is on, and the vehicle shows reduced performance. I've checked the...
Chevy Captiva | P06062006 Ford F150 5.4L Engine Rough Idle with P0016, P0174, and P0303 Codes After Spark Plug Replacement
I recently had to remove the cylinder head on Bank 1 to extract a broken spark plug. After reassembling the engine, my 2006 Ford F150 5.4L is now running with a very rough idle....
2006 Ford F150 | P00162002 GMC Sierra 1500 Failed Inspection: OBD2 Codes P0171 and P0174 with Recurring P0327 Knock Sensor Issue
I have a 2002 GMC Sierra 1500 that failed state inspection due to OBD2 fault codes P0171 and P0174. I replaced the intake manifold gasket, but the check engine light came back o...
2002 gmc sierra | P0171Pontiac Grand Prix GTP Cylinder 4 Misfire and Injector Malfunction - P0304 & P0204 Codes
I own a 2003 Pontiac Grand Prix GTP with a 3.8L supercharged engine. I'm experiencing intermittent cylinder 4 misfire and injector malfunction, indicated by fault codes P0304 an...
Pontiac Grand Prix GTP | P0304P0303 Fault in 2004 Chevrolet Impala: Diagnosis and Solutions
My 2004 Chevrolet Impala got stuck in snow and I revved the engine, but it did not overheat. Now the check engine light is showing code P0303, and the vehicle runs roughly. I al...
2004 Chevy Impala | P0303Practical workflow for fault-code troubleshooting
Start by confirming battery voltage and reading freeze-frame data, then inspect wiring and connectors before replacing parts. If the code returns after clearing, record the exact driving or idling condition when it reappears. Prefer case threads with complete repair feedback, because confirmed outcomes provide stronger guidance than one-time symptom descriptions. Following a step-by-step workflow reduces repeated repairs and lowers total diagnosis time.